Home / 405,280,519.86-607,969,972.59-114,147,642.48

Finding the Fourth Proportional to 405,280,519.86, 607,969,972.59 and 114,147,642.48

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Solution

The fourth proportional to 405,280,519.86, 607,969,972.59 and 114,147,642.48 is: 171,235,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,280,519.86 : 607,969,972.59 = 114,147,642.48 : x
  2. Step 2: Convert to fraction form
    405,280,519.86/607,969,972.59 = 114,147,642.48/x
  3. Step 3: Cross multiply
    405,280,519.86x = 607,969,972.59 × 114,147,642.48
  4. Step 4: Simplify right side
    405,280,519.86x = 69,398,339,069,778,728
  5. Step 5: Solve for x
    x = 69,398,339,069,778,728/405,280,519.86
  6. Step 6: Final answer
    x = 171,235,318.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.